To uninstall, just delete MainMenu.swf from your Data\Interface folder.

Note: this mod requires that you have loose files enabled. If you haven't done that, go to this link and follow the instructions in the "How To Enable Fallout 4 Mods" section at the top.

Compatibility

Not compatible with anything that modifies MainMenu.swf. Compatible with everything else. Has no effect on the actual game, this is just the launch menu, so it won't affect gameplay, savegames, or anything else. Can be removed at any time.

Confirmed to work with UWPU, Widescreen Fix, TruBy9 UltraWide.

Credits

Bethesda for Fallout 4, the Creation Club, and the original menu file.JPEXS Free Flash Decompiler for the tool needed to modify the file.